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Data conversion

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to readable text.

Everything runs in your browser. Your data is never sent to a server.

What does the Base64 tool do?

Base64 represents binary data using only letters, digits and a few symbols. Email attachments, data URLs and some authentication headers use it. This tool is UTF-8 aware, so accented and Turkish characters encode and decode correctly.

What is it for?

  • Decoding the user:password value in an HTTP Basic Auth header
  • Reading text an API returns as Base64
  • Making a short piece of text safe to carry inside a URL or JSON

Things to keep in mind

  • Base64 is not encryption; anyone can decode it. Don't use it to protect secrets.
  • Encoded data is roughly a third longer than the original.

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